Yealink SIP-T42U Gigabit IP Phone (1301201) | Like New
SKU: SIP-T42U-LN
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Overview of Yealink SIP-T42U Gigabit IP Phone (1301201) | Like New
The Yealink SIP-T42U Gigabit IP Phone (1301201) is a feature-rich business desk phone designed for effective everyday calling, flexible deployment and clear communication. It provides office customers with a dependable and scalable VoIP experience by combining a 2.7-inch backlit graphical LCD, dual Gigabit Ethernet ports and support for up to 12 SIP accounts. The SIP-T42U is a useful tool for reception desks, offices and team workspaces because it is designed for contemporary corporate contexts and supports PoE, USB accessories, Wi-Fi via compatible adapters, Bluetooth via compatible adapters and built-in call handling facilities. Conversations are kept clear and professional due to its HD voice quality and acoustic noise-reduction features.
Key Features of Yealink SIP-T42U Gigabit IP Phone
• 2.7-inch 192 x 64-pixel graphical LCD with backlight for clear visibility.
• Dual Gigabit Ethernet ports for fast, reliable network connectivity.
• Up to 12 SIP accounts for multi-line business calling.
• HD voice with Acoustic Shield and Smart Noise Filtering for clearer calls.
• PoE support for simplified installation and reduced cabling.
• Dual USB ports for USB headset, recording and accessory support.
• Wi-Fi and Bluetooth support through compatible Yealink accessories.
• Wall-mountable design with two adjustable stand angles.
Benefits of Yealink SIP-T42U Gigabit IP Phone
🗹 Improve call clarity with Optima HD voice and noise filtering that help voices sound more natural.
🗹 Support busy teams with multiple SIP accounts and flexible line handling.
🗹 Reduce setup complexity with PoE and dual Gigabit ports for clean desk installations.
🗹 Add productivity with USB headset, recording and wireless accessory support.
🗹 Fit different workspaces easily thanks to adjustable angles and wall-mount compatibility.
🗹 Give IT teams a scalable Yealink business phone that supports modern deployment and provisioning workflows.
Specifications
Specifications for Yealink SIP-T42U Gigabit IP Phone (1301201) | Like New
| Manufacturer | Yealink |
| Manufacturer Part Number | SIP-T42U, 1301201 |
| Product Name | Yealink SIP-T42U Gigabit IP Phone |
| Product Type | IP Phone |
| Color | Gray |
| Display Type | 2.7-inch graphical LCD with backlight |
| Display Resolution | 192 x 64 pixels / 192 x 68 pixels, depending on listing |
| SIP Accounts | Up to 12 SIP accounts |
| Line Keys | 6 line keys with LED |
| Programmable Keys | Up to 15 paperless DSS keys via 3-page view |
| Audio Technology | Optima HD voice, Acoustic Shield, Smart Noise Filtering |
| Speakerphone | Full-duplex hands-free speakerphone with AEC |
| Hearing Aid Support | HAC handset supported |
| Codecs | AMR-WB, Opus, G.722, G.711(A/µ), G.723.1, G.729AB, G.726, iLBC |
| Call Features | Call forward, call waiting, call transfer, call hold, call return, DND, mute, auto answer, 5-way conference |
| Directory Capacity | Local phonebook up to 1000 entries |
| Network Interfaces | 2 x RJ45 10/100/1000M Ethernet ports |
| Ethernet Type | Gigabit Ethernet |
| Power | PoE support, IEEE 802.3af Class 2 |
| Power Consumption | 0.9–2.2 W with PSU; 1.3–2.9 W with PoE |
| USB Ports | 2 x USB 2.0 ports |
| USB Accessories | USB headset, USB recording, Wi-Fi via WF40/WF50, Bluetooth via BT40/BT41/BT52, EHS support |
| Headset Port | RJ9 headset port |
| Handset Port | RJ9 handset port |
| Network Protocols | SIP v1 (RFC2543), SIP v2 (RFC3261), UDP/TCP/DNS-SRV (RFC 3263), IPv4/IPv6 |
| Security | 256-bit AES, HTTPS, TLS, WPA2, WPA3, SRTP, 802.1X |
| QoS | 802.1p/Q tagging, Layer 3 ToS DSCP |
| Management Features | HTTP/HTTPS web server, SNTP, NAT traversal, call server redundancy |
| Stand | Two adjustable angles |
| Mounting | Wall mountable |
| Dimensions | 212 x 189 x 175 x 54 mm |
| Operating Temperature | -10 C to 50 C / 14 F to 122 F |
| Operating Humidity | 10% to 95% |
| Phonebook / Contact Features | Smart dialing, search/import/export, call history |
User Guides
Frequently Asked Questions
Yealink SIP-T42U Gigabit IP Phone
Frequently Asked Questions (FAQ's)
How many SIP accounts does the Yealink SIP-T42U support?
The Yealink SIP-T42U supports up to 12 SIP accounts, making it suitable for professionals who manage multiple business lines.
Does the Yealink SIP-T42U feature HD Voice?
Yes. It includes Yealink Optima HD Voice technology for crystal-clear handset, speakerphone and headset audio.
What type of display does the SIP-T42U have?
The phone features a 2.7-inch backlit monochrome LCD display for easy navigation and call management.
Does the phone support Power over Ethernet (PoE)?
Yes. The SIP-T42U supports IEEE 802.3af Power over Ethernet (PoE), allowing power and data to be delivered through a single Ethernet cable.
Does the SIP-T42U include Gigabit Ethernet ports?
Yes. It features dual Gigabit Ethernet ports for high-speed network connectivity and PC pass-through.
Can I connect a headset to the Yealink SIP-T42U?
Yes. The phone includes an RJ9 headset port and supports Electronic Hook Switch (EHS) for compatible wireless headsets.
Does the phone have a speakerphone?
Yes. The SIP-T42U includes a full-duplex speakerphone that delivers clear hands-free conversations.
Can I expand the programmable keys?
Yes. The phone is compatible with the Yealink EXP43 Expansion Module, providing additional programmable DSS keys for high-volume call handling.
Does the SIP-T42U include a USB port?
Yes. It features a USB 2.0 port for compatible accessories such as Bluetooth, Wi-Fi, or USB recording devices, depending on supported configurations.
Is the Yealink SIP-T42U compatible with major VoIP platforms?
Yes. It supports standard SIP protocols and is compatible with many hosted VoIP services, IP PBX systems and Unified Communications platforms.
Does the phone support IPv6?
Yes. The SIP-T42U supports both IPv4 and IPv6 networking environments.
What security features does the phone offer?
The phone supports enterprise-grade security protocols, including TLS, SRTP, HTTPS and 802.1X authentication, to help protect voice communications and network access.
Is the SIP-T42U suitable for receptionists and administrative staff?
Yes. With support for multiple SIP accounts and expansion modules, it is well suited for reception desks, administrative assistants and office professionals.
Can the phone be wall mounted?
Yes. The Yealink SIP-T42U supports optional wall-mount installation for flexible deployment.
Is the phone easy to deploy?
Yes. It supports auto-provisioning and web-based management, simplifying installation and administration for IT teams.
Can I use the SIP-T42U in a small business or enterprise environment?
Yes. It is designed for both SMBs and large enterprises that require dependable VoIP communications.
Does the phone support conference calling?
Yes. The SIP-T42U supports local conference calling, allowing multiple participants to join a single conversation.
Is the Yealink SIP-T42U energy efficient?
Yes. Its PoE support and efficient hardware design help reduce power consumption while maintaining reliable performance.
Is the 1301201 a genuine Yealink product?
Yes. The 1301201 is an authentic Yealink SIP-T42U Gigabit IP Phone designed for professional business communications.
Why choose the Yealink SIP-T42U Gigabit IP Phone (1301201)?
The Yealink SIP-T42U combines support for up to 12 SIP accounts, Optima HD Voice, dual Gigabit Ethernet ports, PoE, USB connectivity, EXP43 expansion module compatibility, enterprise-grade security and intuitive management features, making it an excellent choice for businesses seeking a reliable, scalable and feature-rich VoIP desk phone.